During a JSON parsing operation, the system encountered an illegal unquoted character: a line break (CTRL-CHAR, code 10). The error indicates that the string value in the JSON source contains an unescaped newline, which is not allowed. The parser reported the issue at line 1, column 766 of the input stream, and it must be corrected by escaping the character with a backslash. This problem typically occurs when raw text is inserted into a JSON string without proper escaping, causing the parsing process to fail. When the parser encounters such a violation, it raises a JsonParseException, which in turn is wrapped in a RuntimeException to signal a fatal error condition. Fixing the issue involves ensuring all string literals in the JSON payload are correctly escaped, including newlines, tabs, and special characters, to comply with the JSON specification. After correction, the data can be successfully parsed and processed by the application.
© European Central Bank, 2025.
Summary derived from the ECB website (https://www.ecb.europa.eu ).
https://www.ecb.europa.eu/stats/ecb_surveys/sma/shared/pdf/ecb.sma251201_questionnaire.en.pdf
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